Missing enum in TrainElementTypeEnumeration truckTransporter

[ue71603]

The enum is missing a transporter for heavy vehicles.
<xsd:simpleType name="TrainElementTypeEnumeration">
xsd:annotation
xsd:documentationAllowed values for TYPE OF TRAIIN ELEMENT.</xsd:documentation>
</xsd:annotation>
<xsd:restriction base="xsd:NMTOKEN">
<xsd:enumeration value="buffetCar"/>
<xsd:enumeration value="carriage"/>
<xsd:enumeration value="engine"/>
<xsd:enumeration value="carTransporter"/>
<xsd:enumeration value="sleeperCarriage"/>
<xsd:enumeration value="luggageVan"/>

...and probably also in RailSubmodeEnumeration <xsd:enumeration value="truckTransportRailService">

and we have the case that multiple Submodes might exist.

[Aurige]

Ok, I add it for discussion with the group